1 Background - mountain.PROJECTS

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TURKU UNIVERSITY DEPARTMENT OF GEOGRAPHY PUBLICATIONS B Nr 4739900023 m a.s.l1454 m a.s.l.1217 m a.s.l.10 m a.s.l.16-987397000171109 m a.s.l.1638T217395000800134North (m)190EP54073930007391000ENGABREENStake positions and snow soundings2001 black crosses +2002 red dashes2003 blue dashesT1011431354 m a.s.l.T1051594 m a.s.l.Map based on aerial photographs fromAugust 25 1968. Contour interval 50 m.0mCoordinate system UTM Zone 33, EUREF891000m 2000m7389000443000 445000 447000 449000 451000 453000East (m)Figure 3. The locations of mass balance measurements on Engabreen.The lines are showing the snow depth soundings during the project.7402000STORGLOMBREENGlaciological measurementson Storglombreen 2001-3Tretten-null-to-breenSTO101760 m a.s.l.7398000Bautaen1218 m a.s.l.1-011-00StorglomvatnNorth (m)T213-0020-01Terskaldfjellet936 m a.s.l.739400040-00Snow depth soundings:2001 blue dashes2002 red crosses2003 black dashes7390000T105Skjæret T231352 m a.s.l.Snøtind1595 m a.s.l.Breitind1354 m a.s.l.0 m 1000 m 2000 m 3000 mMap constructed from aerial photographs from25th August 1968. Contour interval 25 m.Coordinate system UTM Zone 33, EUREF89.450000 454000 458000 462000East (m)Figure 4. The locations of mass balance measurements on Storglombreen.The lines are showing the snow depth soundings during the project.16
PETRI PELLIKKA AND KARI KAJUUTTI (ED)Engabreen 2001 – specific balance, traditional methodEngabreen 2001 – volume balance, traditional method16001600140014001200120010001000elevation (m a.s.l.)800elevation (m a.s.l.)800600600400400200200-12,0 -10,0 -8,0 -6,0 -4,0 -2,0 0,0 2,0 4,0balance (m w.eqv.)00-40 -30 -20 -10 0 10 20 30 40balance (10 6 m 3 )Net balance Summer balance Winter balanceWinter balance Summer balance Net balanceEngabreen 2002 – specific balance, traditional methodEngabreen 2002 – volume balance, traditional method16001600140014001200120010001000elevation (m a.s.l.)800800elevation (m a.s.l.)6006004004002002000-16,0 -14,0 -12,0 -10,0 -8,0 -6,0 -4,0 -2,0 0,0 2,0 4,0balance (m w.eqv.)-40 -30 -20 -10 0 10 20 30 40balance (10 6 m 3 )0Net balance Summ er balance Winter balanceWinter balance Summer balance Net balanceEngabreen 2003 – specific balance, traditional method1600Engabreen 2003 – volume balance, traditional method16001400140012001200elevation (m a.s.l.)10008006001000800elevation (m a.s.l.)6004004002002000-16 -14 -12 -10 -8 -6 -4 -2 0 2 4balance (m w.eqv.)Net balance Summer balance Winter balance0-40 -30 -20 -10 0 10 20 30 40balance (10 6 m 3 )Winter balance Summer balance Net balanceFigure 5. Mass balance on Engabreen for 2001 (top), 2002 (centre) and 2003(bottom), shown as specific balance on the left, and volume balance on the right.17
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